21993264

素因数分解:

$2^4\times 3^2\times {\mathrm{163}}^1\times {\mathrm{937}}^1$

素因数の和:1114

約数の個数: 60

約数和(自身を含む): 61994296

約数和(自身を除く): 40001032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 163, 326, 489, 652, 937, 978, 1304, 1467, 1874, 1956, 2608, 2811, 2934, 3748, 3912, 5622, 5868, 7496, 7824, 8433, 11244, 11736, 14992, 16866, 22488, 23472, 33732, 44976, 67464, 134928, 152731, 305462, 458193, 610924, 916386, 1221848, 1374579, 1832772, 2443696, 2749158, 3665544, 5498316, 7331088, 10996632, 21993264]

約数ペア:

[(1, 21993264), (2, 10996632), (3, 7331088), (4, 5498316), (6, 3665544), (8, 2749158), (9, 2443696), (12, 1832772), (16, 1374579), (18, 1221848), (24, 916386), (36, 610924), (48, 458193), (72, 305462), (144, 152731), (163, 134928), (326, 67464), (489, 44976), (652, 33732), (937, 23472), (978, 22488), (1304, 16866), (1467, 14992), (1874, 11736), (1956, 11244), (2608, 8433), (2811, 7824), (2934, 7496), (3748, 5868), (3912, 5622)]